Machine for use in the manufacture of boots and shoes.



VWTA/ESSES'.

E. L. KEYES.

MACHINE FOR USE IN THE MANUFACTURE OF BOOTS AND SHOES. APPLICATION FILEDOCT. 28, 1901.

1 9 1 1 g 9 Patented June 22, 1915.

2 SHEETSSHEET 1.

m i l n llllll Elli"lllllllllllllllllllllllllllll II Tmllllulliliilnmfliiilium! THE NORRIS r-z'TERS 60.. PHOTO-LITHQ.WASHINGTON. n

E. L. KEYES.

MACHINE-FOR USE IN THE MANUFACTURE OF BOOTS A'ND SHOES.

APPLICATION FILED OCT. 28, 1907.

1 w l %@J? 1]. E D Patented. June 22, 1915.

2 SHEETS-SHEET 2.

THE NORRIS PETERS Ca. PHOm-LITHCL. WASHINGT n C,

EUGENE L. KEYES, OF BOSTON, MASSACHUSETTS, .ASSIGNOR T0 UNITED SHOEMACHINERY COMPANY, OFPATERSON NEW JERSEY, AGORPORATION OF NEW JERSEY.

MACHINE FOR USE IN THE MANUFACTURE OFIBQOTS AND SHOES.

Specification of Letters Patent.

Patented June 22, 1915-.

Application filed October 28,1907. Serial No. 399,529.

To all whom it may concern:

Be it known that I, EUGENE L. Knrns, a citizen of the United States,residing at Boston, in the county of Suffolk and Commonwealth ofMassachusetts, have invented certain Improvements in Machines for Use inthe Manufacture of Boots and Shoes, of which the following descriptiominconnection with the accompanying drawings, is a. specification, likereference characters on the drawings indicating like parts in theseveral. figures.

This invention 'relates to i the manufacture of boots and shoes andparticularly to 'machines for working an upper over a last.

The invention will be explained in connection with the manufacture ofwelt shoesfor which purpose the illustrated machine has been designed.In a lasteol'welt shoe the upper is secured at theheel seat by tacksfully driven while the welt and upper are secured to the innersole by'aline of stitches called the inseam, extending from, a point adjacent tothe heel seat -around the .forepart to a point adjacent tothe heel seaton'the opposite side of the shoe. There is, however, a short distance ofusuallyone-half inch'or morebetween the end of the inseam and the heelseat lasting tacks which itis impracticable to reach with a sewingmachine and which is therefore unsecured totheinnersole. Moreover thesewing 'machine sews less tightly at the beginning and-end ofathe inseamthan at the intermediate portions, because near these points theupperlha's been already overlaid and tacked to the heel seat and it istherefore diflicult to position the sewing instrumentalities'down in thechannel cut at the base of the'innersole lip.

An important feature of'this invention consists in a machine which isadapted to 0perate upon a shoe having the forwardzportion, shanks, andheel: seat'lasted and a welt attached to the upper and inner-sole aboutthe forwardportion and shanks, and which machine comprises improvedmeans for engaging the shoe stockfor a limited distance adjacent to therear "end of the welt to tighten the upper about the last and hold theupper while it is being. secured.

The illustrated lnachineifurther comprises mechanism for driving tacksto eifect the securing of the upper. The engaging'means is preferablyalthough not-necessarily conth e'end of the inseam to of the weltoverthe'edge istrueted and arranged to contact with the shoe stock -1nthe 1 crease between the upper and the welt, usually called the welt-crease,but accordingto the present invention contacts with theouteredgeface of the welt 'and'by such contact at and adjacent to crowdthe butt end of the last and the innersole. Force applied to the shoe atthis immediately adjacent portlons of the seam. driving means isarandthe tacker and engaging means may be :arranged forrelative-movement in a direction Ito bring the tacker and the engagingmeans :from a relative position suitable to ipermitthe convenientengagement of said means-with the shoeinto a different position for thesecuring tack to be driven in the tie sired place. Asher-em shown theshoe and the engaging meansare movable together toward :and from thetacker and the latter may include a movable nozzle, which is connectedtothe tacker-actuating :lTlGCl'lElDlSHl to cause thelatterto as shown,

be started when sufficientipressure has been applied to V 5 lift the"nozzle.

Thertacker is located-above theengaging member Where the shoe is broughtinto operativerrelation-to it by an upward movement that also causes theshoe stock to be pressed down against the last bot-tom between the lastandthe tacker. In accordance -with-ranother feature of the invention inthe illustrated construction a combination exists between vthe weltengaging means and the nozzle of:the tacker which has a roughenedshoe-engaging surface which, during the lateral and upward movement ofthe shoe, contacts with the shoe stock on the bottom face of theinnersole and works it inwardly from the edge of the last'while it isbeing forced downwardly against the innersole. The nozzle 1s raisedagainstthe resistance of a spring to start the tacker so that theabovedescribed action must take place before the V tacker is started toinsert the tacks.

Anotherimportant characteristic of the inventlon is found in theconstruction and arrangement of the stock-engaging-devices andithe otherparts of the machine so that the shoe and the'engaging devices may beobliquely to the devices so that the stock at the rear end of the seamis forced over the last farther than that ahead of the extreme end ofthe seam or the shoe may be presented first squarely against theengaging devices and then turned to increase the pressure upon the stockat and back of the end of the seam. In such oblique presentation and inthe turning movement of the shoe the butt end of the welt back of theend of the seam is forced or turned by said engaging devices to agreater or less extent inwardly over the shoe bottom and herein is founda very important feature of the invention, which consists in means formanipulating the butt end portion of the welt over the shoe bottom whereit may be secured in place to become a suitable part of the seat for theheel which is to be attached to the shoe. The welt attaching operationusually leaves the end portion of the welt back of theend of the seaminclined outwardly, whereas the curvature of the edge of the shoe atthis point is such that the welt should be turned inwardly. In theillustrated machine the shoe stock engaging means heretofore referred tois formed to contact with the welt and as above mentioned may beemployed to turn the butt end of the work over the shoe bottom intoposition to be secured by the tacker. As shown, the welt engaging meansincludes, in addition to a member adapted to extend under the welt intothe welt crease a member for engaging the edge of the welt for bendingthe butt end thereof inwardly over the shoe bottom by an oblique orturning movement of the shoe relatively to the engaging means, and, toadapt them for variations in the widths of welts, the creaseengagingmember and the welt edge-engaging member may be relatively adjustable asmay be bent inwardly progressively and a plurality of tacks insertedalong the length of the inturned end portion to hold it and the upper inplace. As shown, the engaging means comprises also a third memberadaptedto overlie the welt and prevent it from buckling or turning upwhen it is bent edge- .wise' to carry it over the shoe bottom. Thislatter member is preferably adjustable to ward and from thecrease-entering member to accommodate welting material of dill'erentthicknesses.

These and other features of the invention, including certain details ofconstruction and combinations of parts, will be further explained in thefollowing description and then pointed out in the claims.

The drawings represent an apparatus einbodying the invention in the bestform now known to me.

Figure 1 is a side elevation of a machine equipped with this invention.Fig. 2 is a perspective view of the rear portion of a shoe shown insection and illustrating on the right-hand side of the shoe a conditionoften found in shoes before treatment by this machine and on theleft-hand side of the shoe the condition of the parts after treatment inaccordance with this invention. Fig. 3 is a perspective view of the shoein relation of presentation to the welt creaseengaging member and thetacker. Fig. 4; is a plan view of the shoe and the crease engagingmember, showing in dotted lines the position that appears in Fig. 3 andin full lines the position toward which, in this embodiment of theinvention, the shoe is preferably moved for causing the stock to beforced over the innersole. Fig. 5 shows the stock-engaging devices inside elevation and in operative relation to the shoe which appears insection.

The frame of the machine supports a driving shaft upon which is looselymounted the pulley 2, which has on its front or righthand surface afriction face for engagement with the adjacent face of the cam blocklthat is fixed upon the shaft and through which the shaft is driven. Thepulley is actuated toward the cam block to cause the shaft to be drivenby a spring 6 which connects the upper end of the lever 8 with theframe. The lever is forked to embrace the driving shaft and is fulcrumedat its lower end at 9. It is provided at 10 with a steel platepresenting a shoulder for engageu'ient with a similar shoulder on aplate carried by the horizontal lever 12, which is fulcruined to aswinging bar 14. This bar, which is pivoted at 15, has a roll thatstands in a groove in the cam block 4:. The horizontal. lever 12 extendsforwardly over an abutment 16, shown as mounted for a slight pivotalmovement, which is carried by the stem 18 of the vertically movablenozzle 20 of the tacker. The driving shaft is operatively connectedthrough any suitable devices with means to deliver tacks to the inclinedraceway 21, by which they are led to the nozzle. The driver carried bythe bar 22 is lifted by the cam 23 and actuated downwardly by the spring24. Arranged in a plane below the nozzle is the plate 25 which isslotted for endwise adjustment on the support 26, as shown in Fig. 3.The front end of the plate is preferably shaped to enter the welt creaseof a shoe and, as shown, it has lateral extensions at 27, 28 to presenta wide engaging surface. The plate 25 is preferably made of spring metaland has a bend or compound curve, as at 29. In the preferred embodimentof the invention the plate 25, which constitutes the weltcrease-engaging means, carries a member or device 30 for engaging theedge face of the Welt and a member or device 32 which overlies the welt,as shown in Fig. 5. The member 30 is shown as adjustably connected withthe plate 25 at 34. to adapt it for welts of different widths and themember 32 is also adjustable about a pivot. at 35 by means of the screw36 to position it for different thicknesses of welts.

When the machine is at rest the parts occupy the position shown in Fig.1 and the shoe is presented, preferably in the hands of the operator,first against the crease-engaging plate 25, which is constructed andarranged as described, to tighten the upper about the last by forcingthe shoe stock inwardly and upwardly over the edge of the last or theinnersole and hold it under tension until it is secured. The shape ofthe engaging member adapts it to enter the welt crease and engage boththe upper and the welt for this purpose and the thrust is of coursetaken up by the inseam which connects the upper and welt to the lip 38of the innersole. If the inseam instead of being formed at the base ofthe lip as it should be, see Fig. 5, is located near the upper edge ofthe lip, as often occurs near the rear ends of the seam, as indicated atthe right in Fig. 2, the engaging device 25 will bend the lip and carrythe seam inwardly over the innersole. The formation possessed by theplate 29 causes its acting end to spring up and exert an upward strainupon the shoe stock when the shoe is pressed against the plate.

The shoe and engaging member will preferably be turned relatively whilein engagement to increase the pressure against the shoe stock at therear end of the seam and carry the stock over the last bottom, for eX-ample, as illustrated in Fig. 4-. The member 30 may be arrangedrelatively to the member 25 so that it will. engage the edge of the weltwhen the shoe is presented squarely against the engaging devices or itmay be set far enough back from the edge of member 25 so that it willonly contact with the welt when the shoe is turned. In either positionthe member 30 will, during the turning of the shoe, bend or turn thebutt end of the welt, at and in the rear of the end of the seam, overthe last bottom and thus position it properly upon the heel seat oftheshoe. The plate 32 prevents the welt from buckling or bendingupwardly while the end is being turned inwardly. Of course the member 30will be adjusted at 34; to adapt it to the width of the welt of theparticular shoes to be operated upon and the plate 32 Will be adjustedfor the thickness of the welting.

The stock-engaging devices are located a convenient distance below thenozzle of the tacker to permit the shoe to be conveniently presented tothe engaging devices. As has been referred to, the pressure of the workcauses the plate 25 to spring or bend at 29 and tends to lift the shoeso that special effort by the operator for this purpose is unnecessary.This movement may carry the shoe upwardly against the lower end of thenozzle, which is roughened as shown. The nozzle thus becomes astock-engaging member for forcing the stock on the last bottom inwardlyaway from the edge of the last as the shoe is turned or thrust inwardly.The nozzle is raised to start the machine by upward pressure of the shoeagainst it, but as this raising of the nozzle takes place against thetension of a spring 40 the nozzle serves as an effective device foroverworking the upper before it is raised. It will be understood thatthe nozzle engages with the stock on the last bottom subsequently to theen gagement of the shoe with the crease-engaging member.

By the described relative movements of the shoe and the stoclncngagingdevices the upper between the heel seat tacks and the inseam andadjacent thereto is tightened into lasted position about the last andthe upper and welt are forced over the last bottom and held undertension. When a satisfactory overworking of the shoe stock has been effected the operator lifts the shoe and raises the nozzle, thus rockingthe horizontal lever 12. This movement of the lever removes the shoulderon its rear end from the shoulder on the lever 8 and permits the spring6 to draw the rotating pulley into enga ement with the cam block a andstart the driving shaft. This moves the cam 23 to release the driver forinserting a tack. The parts are preferably so arranged that the tackwill be driven through the welt and upper into the innersole, asindicated in the drawings. By adjusting the plate 25 upon its supportthe distance from the edge of the shoe at which the tack will be drivencan be varied. The plate 25 preferably projects outwardly from themachine farther than the member and the latter does not come between thenozzle and any portion of the work. The plate 25 may be notched asindicated in dotted lines in Fig. 4 so that no portion of it is directly1 under the nozzle.

In addition to the uses of the machine already described in tighteningthe upper of a welted shoe between the welt seam and the heel seat tacksand securing the upper the machine mayadvantageously be employed whilethe operator has the shoe in his hands, or at a different time, fortacking on the shank stiffener, which is indicated in Figs. 3 and 4: at45. In this operation the resilient plate 25 serves as a yieldingpresser to force the stifiener down upon the innersole adjacent to the.point where it is to be tacked and to assist the operator in holdingthe stiffener in position while it is being tacked.

Having explained the nature of this 'invention and fully described aconstruction embodying the same andhow it may be used, I claim as newand desire to secure by Letters Patent of the United States 1. In amachine for Working upon a welted shoe, means for engaging the inseam totighten the upper over the last, and means for engaging the welt to turnthe butt end thereof over the shoe bottom.

2. In a machine for working upon a welted shoe, means for engaging theinseam to tighten the upperover the last, and means for engaging thewelt to turn the butt end thereof over the shoe bottom, combined withmeans for fastening the upper and welt.

3. In a machine for working upon a welted shoe, devices constructed andarranged to engage the shoe stock to tighten the upper about the lastand having a direct pushing engagement with the welt outside the weltcrease to turn the butt end of the welt relatively to the body portionthereof inwardly over the shoe bottom and hold said parts while they arebeing tacked.

4. In a machine for working upon a welted shoe, devices constructed andarranged to engage the shoe stock to tighten the upper about the lastand position the butt end of the welt over the shoe bottom, said devicesincluding means for preventing the welt from buckling, and means forsecuring the welt. 7

5. In a machine for working upon a welted shoe, devices constructed andarranged to engage the shoe stock to tighten the upper about the lastand position the butt end of the welt over the shoe bottom, said devicesincluding a member arranged to extend under the welt to engage theinseam, and a member to engage the butt end of the Welt back of theinseam.

6. In a machine for working upon a welted shoe, devices constructed andarranged to engage the shoe stock to tighten the upper about the lastand turn the butt end of the Welt over the shoe bottom, said devicesincluding a member arranged to eX- tend under the welt to engage theinseam,

a member to engage the butt end of the welt back of the inseam, and amember to overlie the welt and prevent it from buckling when it isturned.

7. In a machine for working upon a welted shoe, a device for engagingthe shoe stock in the inseam, and a device constructed and arrangedrelatively thereto to engage the edge of the butt of the welt, andposition said welt butt over the shoe bottom.

8. In a machine for working upon a welted shoe, a device for engagingthe shoe stock in the inseam, and a device constructed and arrangedrelatively thereto to engage the edge of the butt of the welt when theheel end of the shoe is turned toward said devices, combined with meansfor securin g the welt butt.

9. In a machine for working over a last the portions of shoe stockadjacent to the ends of the inseam, means for engaging the shoe in thewelt crease to tighten the upper over the last, and a tacking mechanismto fasten the stock in tightened condition, said machine beingconstructed and arranged to permit relative turning movement of theengaging means and the shoe, combined with a device for engaging theedge face of the butt end portion of the welt in the rear of the seam toposition it over the shoe bottom during the tack driving operation.

10. In a machine of the class described, means arranged for engagementwith the outer edge face of the welt to force the butt end portionthereof over the innersole, combined with means arranged to drive a tackinto the welt and innersole.

11. In a machine of the class described, means arranged for engagementwith the inseam to force the welt butt over the innersole and means tohold the outer edge portion of the welt down during such movement,combined with means for driving a tack in position to retain the weltbutt over the shoe bottom.

12. A machine of the class described comprising means to tighten theupper of a. welted shoe about the last and position the butt ends of thewelt on the insole, said means including a device to engage the uppersurface of the welt and prevent it from buckling.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

EUGENE L. KEYES.

Witnesses ARTHUR L. RUSSELL, CHARLES E. GRUSII.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents.

Washington, D. C.

